In many threads, it is obvious from the thread starter's own statements that there was a preconceived intent to immigrate. But they just don't want USCIS to find out about that intent.
And whether USCIS decides such intent existed or not, each attempt at B2 -> AOS makes things more difficult for other B2 applicants in the future, and makes it less likely that the given country will be added to the visa waiver list (excessive overstays and AOS of VWP travelers can also make a country get removed from the visa waiver list ... e.g. Uruguay was revoked in 2003). The fact they routinely deny B2 visas to so many people around the world for the mere suspicion that they will attempt AOS shows that they have a big problem with it, even if USCIS approves your parent's or spouse's B2 -> AOS transition.
The US Consulate did not give B2 visa to my mom for several years like many others on this forum under the clause 214(b), if I am not mistaking the number, which stands for potential immigrant. What it meant was they had reasonable doubt based on statistics on our country that people on B2 would not return to their country and stay hidden in USA illegally. Fair call.
But interestingly enough after I became citizen of this country 11 years later, they gave my mom visa stating in the interview "now they don't care if she would immigrate or not as I can do her GC anyway ( either CP or AOS route) if I want to." So where is the scare in the cases of such B2 s getting converted in to GCs, they would have been converted to GC any way. Isn't it the same for all B2s who qualify for AOS/CP. isn't it matter of choice ?
Now why some parents want to do their AOS and not CP: Parents do not have understanding of the entire process. They can make mistakes in filling up umpteen forms, there may not be anybody to drive them for FP, Medical exams, Interviews at consulate, get tickets for USA within 1 month of obtaining GC,
they don't have internet, PCs, knowledge of forums, time, will to sign up for such complicated process, may not have money. They would rather live and die away from their immigrated kids than subscribe to such lengthy and complex process. In such cases kids have no choice but to do their GC via AOS process instead of CP process. IMHO: This is such class of people that if for a reason if their GC is not granted, they will leave US and go back to their country to stay legal. These people may not have broken any law in their entire lifetime and may not want to live and die illegal in the USA.
USCIS would worry about those B2 who do not qualify for GCs easily, come to this country and hide illegally for 12 years to get status. Parents are far from it.
That is why I haven't heard of any case for parents getting rejected for GC on this account. Isn't it?
I don't have anything more to offer in this case, hence the defence rests
